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MAXLink HOA 7320Optical Amplifier

Product Manual

Manual Part No.: 700-0052009

Rev AMarch 2006

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MAXLink HOA 7320 Optical Amplifier Product Manual

Copyright 2006 Harmonic Inc.

Copyright 2006 Harmonic Inc.

Harmonic continues to improve and enhance all product designs. Specifications are subject to change without notice. Harmonic and logo design,eXchange, MAXLink, METROLink, NETWatch, PWRBlazer, TRANsend, and Redefining the Network are trademarks of Harmonic Inc. YAGLinkand PWRLink are registered trademarks of Harmonic Inc. All other names are trademarks or registered trademarks of their respective owners.

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MAXLink HOA 7320 Optical Amplifier Product Manual Rev A (3/06) i

Table of Contents

Chapter 1 Overview1.1 About This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11.2 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11.3 Status LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-31.4 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Chapter 2 Installing the HOA 73202.1 Receiving and Inspecting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12.2 Cable Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12.3 Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22.4 Mounting the HOA 7320 in a Rack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-32.5 Grounding the HOA 7320. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-52.6 Connecting Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-52.7 Connecting the Input Fiber Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-72.8 Connecting the Output Fiber Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-72.9 Connecting a Remote Interlock or Alarm Monitor . . . . . . . . . . . . . . . . . . . . 2-92.10 Enabling Remote Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10

Chapter 3 Web Interface3.1 Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13.2 HTTP Access Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13.3 Accessing and Using the Web Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-23.4 Adjusting the HOA 7320 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-33.5 HOA 7320 Adjustment Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

3.6 Web Interface Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5Chapter 4 Connecting the HOA 7320 to an NMS

Chapter 5 Maintenance5.1 Low Output Power Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-15.2 Cleaning Fiber Optic Connectors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-15.3 Fan Filter Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

Chapter 6 Troubleshooting6.1 Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-16.2 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-26.3 In Case of Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-36.4 Disclaimer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4

Appendix A Technical Specifications

Appendix B Harmonic Inc. Offices

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Table of Contents

ii Copyright 2006 Harmonic Inc.

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MAXLink HOA 7320 Optical Amplifier Product Manual Rev A (3/06) 11

1

Overview

1.1 About This Manual

This instruction manual is a complete guide to installing, configuring, andoperating the MAXLink HOA 7320 Optical Amplifier module. Please read theentire document before beginning installation or operation.

Chapter 1 provides a description of the HOA 7320. Chapter 2 describes the installation procedure. Chapter 3 describes the web interface. Chapter 4 explains how to connect the HOA 7320 to a NMS. Chapter 5 outlines maintenance procedures. Chapter 6 provides instructions for what to do in the event of problems. Appendix A provides complete technical specifications. Appendix B provides a list of Harmonics offices around the world.

1.2 DescriptionThe Harmonic MAXLink HOA 7320 Optical Amplifier provides cost-effectiveamplification of 1550 nm broadcast video signals in FSAN PON architectures.HOA 7320 amplifiers provide high optical output power of 20 dBm.

The HOA 7320 has the following key features:

2 rack-unit (RU) stand-alone module for use in 19-inch or 23-inchequipment racks

20 dBm (100 mW) optical power Single port 1550 nm output Internal monitoring and control

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Overview

12 Copyright 2006 Harmonic Inc.

Front panel features of the HOA 7320 are shown in Figure 1-1. Rear panelfeatures are shown in Figure 1-2. The optical outputs are shown in Figure 1-3on page 1-2.

Figure 1-1. Front panel features of the HOA 7320

Figure 1-2. Rear panel features of the HOA 7320 (DC power model)

Figure 1-3. Rear panel of the HOA 7320-1 with fiber access cover open

Status LEDs

ESD Ground Point

Optical Monitor

Fan Cover and Air Filter

Laser Output

Enabled LED

Laser Output

Manual Key Switch

Low Power

SwitchESD Ground Point

Interlock and Alarm

Relay Connector

Power SupplyGround Lugs

Optical Input Ethernet Port Serial PortFiber Access

Cover

Single port 20 dBm output

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Status LEDs


1.3 Status LEDs

The HOA 7320 has four LEDs on the front panel indicating the conditionsdescribed in Table 1-1. The rear panel has an additional LED that indicates thestatus of the laser output.

1.4 Applications

The HOA 7320 Optical Amplifiers are part of Harmonics MAXLink line. Thisproduct line is designed to meet the economic and technical requirements ofbroadband service providers. Typical applications include:

Medium and long haul applications beyond the reach of 1310 nmtransmitters

Fiber dense architectures Redundant rings Broadcast layer transmission Hub interconnects

Table 1-1: HOA 7320 LEDs

LED Color Description

Power Green The HOA 7320 has power.

Status Green/Red Green indicates that the HOA 7320 isoperating normally. Red indicates analarm condition.

Laser Output Enabled Green Laser Output manual key switch onrear of unit is enabled.

Laser On Green Pump lasers are on.

Laser Output Enabled(rear panel)

Amber Laser Output manual key switch onrear of unit is enabled.

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Overview


Typical applications of the Optical Amplifiers are shown in Figure 1-4.

Figure 1-4. Typical application of the HOA 7320 amplifier

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Installing the HOA 7320


2.3 Precautions

ESD ALERT: Follow strict Electrostatic Discharge (ESD) precautions whenhandling or working on Harmonic equipment and relatedcomponents.

When operating the unit in an equipment rack, take the followingprecautions:

Maintain the ambient temperature around the unit (which may be higherthan the room temperature) within the limit specified for the unit.

Provide sufficient airflow around the unit. Make sure electrical circuits are not overloaded. Consider the nameplate

rating of all the connected equipment, and make sure you have overcurrent protection.

Properly ground all equipment. Do not place objects on top of the unit.

CAUTION: Use of controls or adjustments or performance of proceduresother than those specified herein may result in hazardousradiation exposure.

WARNING: To prevent bodily injury when mounting or servicing thisunit in a rack, you must take special precautions to ensurethat the system remains stable.

The following guidelines are provided to ensure your safety:

This unit should be mounted at the bottom of the rack if it is the only unitin the rack.

When mounting this unit in a partially filled rack, load the rack from thebottom to the top with the heaviest component at the bottom of the rack. If the rack is provided with stabilizing devices, install the stabilizers

before mounting or servicing the unit in the rack.

ATTENTION: Pour viter toute blessure corporelle pendant les oprationsde montage ou de rparation de cette unit en casier, ilconvient de prendre des prcautions spciales afin demaintenir la stabilit du systme.

Les directives ci-dessous sont destines assurer la protection du personnel:

Si cette unit constitue la seule unit monte en casier, elle doit tre placedans le bas.

Si cette unit est monte dans un casier partiellement rempli, charger lecasier de bas en haut en plaant llment le plus lourd dans le bas.

Si le casier est quip de dispositifs stabilisateurs, installer lesstabilisateurs avant de monter ou de rparer lunit en casier.

WARNUNG: Zur Vermeidung von Krperverletzung beim Anbringenoder Warten dieser Einheit in einem Gestell mssen Sie

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Mounting the HOA 7320 in a Rack


besondere Vorkehrungen treffen, um sicherzustellen, da dasSystem stabil bleibt.

Die folgenden Richtlinien sollen zur Gewhrleistung Ihrer Sicherheit dienen:

Wenn diese Einheit die einzige im Gestell ist, sollte sie unten im Gestellangebracht werden.

ei Anbringung dieser Einheit in einem zum Teil gefllten Gestell ist dasGestell von unten nach oben zu laden, wobei das schwerste Bauteil untenim Gestell anzubringen ist.

Wird das Gestell mit Stabilisierungszubehr geliefert, sind zuerst dieStabilisatoren zu installieren, bevor Sie die Einheit im Gestell anbringenoder sie warten.

2.4 Mounting the HOA 7320 in a Rack

The HOA 7320 mounts in a standard 19-inch or a 23-inch rack. You can flush-mount or mid-mount the HOA 7320 by changing the orientation and location

of the mounting brackets.The HOA 7320 can be mounted in one of these cabinets:

19-inch Telco rack (mid-mount; see lower left of Figure 2-1) 23-inch Telco rack (mid-mount; see lower right of Figure 2-1) Standard 19-inch cabinet (flush-mount; see upper left of Figure 2-1) 23-inch cabinet (flush-mount; see upper right of Figure 2-1)

Mounting screws are thread-forming UNC #12-24. For best results, always usescrews provided by the rack manufacturer.

To insure the integrity of secondary grounding paths, paint and other non-

conductive surface coatings should be removed from the surfaces between themounting hardware and the framework or cabinet. The surfaces to be joinedshould be cleaned and an anti-oxidant solution should be applied beforejoining the surfaces.

Figure 2-1. Mounting the HOA 7320

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2.4.1 Mounting the HOA 7320 in a 19-Inch Telco Rack

To mount the HOA 7320 in a 19-inch Telco rack:

1. Place the unit in the rack.2. Use four mounting screws to attach the mounting brackets on the

HOA 7320 front panel to the rack.

2.4.2 Mounting the HOA 7320 in a 19-Inch Cabinet

To mount the HOA 7320 in a 19-inch equipment cabinet, you must move themounting brackets from the center-mount position to the flush-mountposition on the unit.

To mount the HOA 7320 in a 19-inch equipment cabinet:

1. Remove the four screws retaining each of the two mounting brackets.2. Re-position the mounting brackets over the holes in the front of each side

of the unit. Make sure the wide flange of the bracket remains against theunit, and the narrow flange extends out and faces forward.

3. Re-insert and tighten four screws to attach each bracket.4. Place the unit in the rack.5. Use four mounting screws to attach the mounting brackets on the

HOA 7320 to the rack.

2.4.3 Mounting the HOA 7320 in a 23-inch Telco Rack

To mount the HOA 7320 in a 23-inch Telco rack, you must rotate themounting brackets, as shown in the upper right of Figure 2-1.

To mount the HOA 7320 in a 23-inch Telco rack:

1. Remove the four screws retaining each of the two mounting brackets.2. Re-orient the bracket so that the narrow flange of the bracket is against the

unit, and the wide flange extends out and faces forward.3. Re-insert and tighten two screws to attach each bracket.4. Place the unit in the rack.5. Use four mounting screws to attach the mounting brackets on the

HOA 7320 front panel to the rack.

2.4.4 Mounting the HOA 7320 in a 23-inch Cabinet

To mount the HOA 7320 in a 23-inch equipment cabinet, you must move themounting brackets to the front, flush-mount positions on the unit and rotate

the brackets as shown in the upper right of Figure 2-1.To mount the HOA 7320 in a 23-inch equipment cabinet:

1. Remove the four screws retaining each of the two mounting brackets.2. Re-orient the bracket so that the narrow flange of the bracket is against the

unit, and the wide flange extends out and faces forward.3. Re-position the mounting brackets over the holes in the front of each side

of the unit. Make sure the narrow flange of the bracket is against the unit,and the wide flange extends out and faces forward.

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Grounding the HOA 7320


4. Re-insert and tighten two screws to attach each bracket.5. Place the unit in the rack.6. Use four mounting screws to attach the mounting brackets on the

HOA 7320 to the rack.

2.5 Grounding the HOA 7320

Before powering the HOA 7320, ensure the unit has been properly groundedper your installation grounding standards. Ground studs are available for thispurpose as shown in Figure 1-2 on page 1-2.

Use a two-hole compressed ground lug (Panduit LCD8-10A-L or equivalent)capable of taking a #8 AWG or larger wire.

2.6 Connecting Power

The HOA 7320 is available in an AC power model and a DC power model.After mounting the HOA 7320 in a rack and grounding the unit, follow thepower connection procedure below for the model that you are installing.

2.6.1 Connecting AC Power

The AC-powered HOA 7320 has one 110/220 VAC (50/60 Hz) inputconnector that requires input voltage from 100 to 240 VAC, at 50 to 60 Hzsingle phase. Selection switching over this range is automatic. The AC powerplug is located on the rear panel.

To connect AC power:

1. Connect the ground contact to ground. This is important for your safety.The ground contact is located on the rear panel, as shown in Figure 1-2 onpage 1-2.

2. Connect the power cord to a 110 VAC or 220 VAC (50/60 Hz) electricalsocket. (The AC-powered HOA 7320 features an auto-sensing powersupply.)The HOA 7320 boots up. It takes about 60 seconds for all systems tooperate.

CAUTION: To avoid personal injury and damage to the equipment, use apower outlet with a protective ground (third wire) contact.

WARNING: This product relies on the buildings installation for short-

circuit (over current) protection. Ensure that a fuse or circuitbreaker no larger than 120 VAC, 15 A U.S. (240 VAC, 10 Ainternational) is used on the phase conductors (all current-carrying conductors).

ATTENTION: Pour ce qui est de la protection contre les courts-circuits(surtension), ce produit dpend de linstallation lectrique dulocal. Vrifier quun fusible ou quun disjoncteur de 120 V alt.,15 A U.S. maximum (240 V alt., 10 A international) est utilissur les conducteurs de phase (conducteurs de charge).

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Connecting the Input Fiber Cable


WARNUNG: Diese Einheit verfgt ber mehr als einen Stromanschlu; umStrom gnzlich von der Einheit fernzuhalten, mssen alleStromzufuhren abgetrennt sein.

To connect DC power:

1. Turn the manual pump switch, located on the rear panel, to the OFFposition. For location of the pump switch, see Figure 1-2 on page 1-2.

WARNING: Applying power with the pump switch ONmay causedamage to the unit and result in unsafe conditions. Ensurethat all optical outputs are properly connected or terminatedbefore you turn on the pump.

2. Remove the cover to the power supply terminal.3. Connect theAfeed power supply to the A power terminals.4. Connect the Bfeed power supply to the B power terminals.5. Verify that the unit is receiving power by viewing the Power LED on the

front panel. Green indicates that the unit is receiving power.6. Replace the power supply terminal cover.

2.7 Connecting the Input Fiber Cable

After you have mounted the HOA 7320 in a rack, connect the input fibercable.

The HOA 7320 has a single optical input port, which is located on the rear ofthe amplifier, as shown in Figure 1-2 on page 1-2. It is protected with a dustcap.

To connect the input fiber cable:1. Remove the dust cap from the HOA 7320 amplifiers input connector andstore the cap in a clean plastic bag for future use.

2. Verify that the fiber cable connector is clean and has not been exposedto any contamination. If the unit has not been previously opened, theconnector will be protected. If you suspect that the connector may havebeen exposed to contamination (e.g., by a dirty fiber cable connector),follow the cleaning procedure in Section 5.2 Cleaning Fiber Optic Connectorsof this manual.Clean the fiber connector only while the optical amplifier is turned off.Any contamination on either the fiber cable or HOA 7320 amplifierconnector can lead to significantly degraded optical link performance.This degradation will most likely manifest itself as poor carrier-to-noiseperformance.

3. Connect the input fiber cable to the input port.

2.8 Connecting the Output Fiber Cables

The optical output connector of the MAXLink HOA 7320 Optical Amplifier islocated on the rear of the module, as shown in Figure 1-3 on page 1-2.

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The optical connector is protected by an optical terminator and spring-loadedshutter. The optical terminator and shutter prevent dust from entering theadapter before the amplifier is installed. The optical shutter also protects youfrom accidental exposure to light radiation while the unit is operational.

DANGER:The fiber carries invisible laser radiation.AVOID DIRECTEXPOSURE TO BEAM.Never operate the unit with a broken fiberor with a fiber connector disconnected.

This product is a Class 3B Laser with a Level 3B Hazard.

Use the following procedure to connect fiber optic cable to the amplifieroutput:

1. Disable the amplifiers optical output by turning the Laser Output keyswitch on the rear panel to the OFFposition (see Figure 1-2 on page 1-2).

2. Verify that the Laser Output Enabled indicator (the amber LED on theamplifiers rear panel) is off, indicating that optical output is disabled.

3. Open the fiber access cover to expose the optical output connector, asshown in Figure 2-2.

Figure 2-2. Optical output connector with fiber access cover open

4. Remove the optical terminator from the connector and store it in a cleanplastic bag for future use.

WARNING: Do not operate the HOA 7320 until you have properlyterminated or connected the optical output.

5. Verify that the fiber cable connector is clean and has not been exposed toany contamination. If the unit has not been previously opened, the

connector will be protected. If you suspect that a connector may have beenexposed to contamination (for example, by a dirty fiber cable connector),follow the cleaning procedure in Section 5.2 Cleaning Fiber Optic Connectorsof this manual.Any contamination on either the fiber cable or amplifier connector canlead to significantly degraded optical link performance. This degradationwill most likely manifest itself as poor carrier-to-noise performance.

6. Connect the output fiber connector. Note the key characteristic of themating connectors and align them accordingly.

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Connecting a Remote Interlock or Alarm Monitor


7. Turn the Laser Output key switch to the ENABLEDposition. Verify theoptical connection.

2.8.1 Disconnecting Output Fiber Cables

If you need to disconnect output fiber cable, follow these instructions.

To disconnect output fiber cable:1. Disable the amplifiers optical output by turning the Laser Output key

switch to the OFFposition.2. Verify that the Laser Output Enabled indicator (the amber LED on the

amplifiers rear panel) is off, indicating that optical output is disabled.3. Disconnect the output fiber from the connector.4. Install an optical terminator.

2.9 Connecting a Remote Interlock or Alarm Monitor

The HOA 7320 has a 5-pin connector that allows you to remotely monitor

alarms and disable the lasers. The interlock and alarm relay connector islocated on the rear panel, as shown in Figure 2-3.

Figure 2-3. Rear panel of the HOA 7320,including the interlock and alarm relay connector

You can connect an interlock device and/or an alarm device using18 to 22 gauge wire. Table 2-1shows the pin definitions.

Table 2-1: Interlock and Alarm Relay Connector Pins

Pin Label Function

Pin 1 NO Normally open

Pin 2 NC Normally closed

Pin 3 COM Common

Pin 4 Interlock A Interlock

Pin 5 Interlock B Interlock

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When operating normally with no alarm present, Pin 2 and Pin 3 makeelectrical contact, while Pin 1 is left open. When an alarm occurs, electricalcontact is made between Pin 1 and Pin 3, while Pin 2 is left open. This remainsuntil the alarm condition is removed.

When Pin 4 and Pin 5 are in contact, the optical output of the HOA 7320 isenabled. The HOA 7320 ships from the factory with a jumper connecting Pin 4

and Pin 5. To use the interlock remotely, replace the jumper with longer wires.

NOTE: If there is no contact between Pins 4 and 5, the laser of the HOA 7320is disabled.

2.10 Enabling Remote Monitoring

You can connect the MAXLink HOA 7320 Optical Amplifier to your TCP/IPnetwork, so that you can monitor and control the amplifier remotely.

After you have completed the installation procedures described in this

chapter, you can use a network management system (NMS) or a web browserto monitor and control the MAXLink HOA 7320 Optical Amplifier.

To remotely monitor the MAXLink HOA 7320 Optical Amplifier, you need to:

Connect the HOA 7320 to the LAN or WAN via the Enternet port shownin Figure 1-2 on page 1-2

Assign an IP address to the amplifier

2.10.1 Accessing the Serial Port

In order to assign an IP address to the HOA 7320, you must connect a PC tothe HOA 7320 and use a terminal emulation program to access the command

line interface.To complete this process, you need:

PC running a terminal emulation application 4-conductor RJ-11 telephone (crossover) cable (included with the

HOA 7320) DB-9 to RJ-11 adapter (included with the HOA 7320)

To connect a PC to the HOA 7320:

1. Connect the RJ-11 cable to the serial port of the HOA 7320 (see Figure 2-3on page 2-9).

2. Connect one end of the DB-9 to RJ-11 adapter to the RJ-11 cable, and theother end of the adapter to the serial port of the PC.

NOTE: If the TTL Alarm is to be used, you must provide an additionalconnection to pin 3. Do not connect pin 3 to any of the pins on theDB-9 connector.

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Enabling Remote Monitoring


Table 2-2lists the pinouts of the RJ-11 serial port. Pins are listed in order, leftto right (from pin 6 to pin 1), as shown in Figure 2-3 on page 2-9.

The required settings for a terminal emulation application are:

Baud: 38400Data bits: 8Parity: NoneStop bit: 1Flow control: None

2.10.2 Changing Passwords

Passwords are required to adjust the settings of the HOA 7320 via the web,or to access the HOA 7320 via Telnet and the command line interface. As asecurity measure, Harmonic recommends that, during installation, youchange both passwords from their default values. Use the command lineinterface (CLI) to change the passwords.

Once the HOA 7320 is operating, the web interface provides a convenientmeans of managing it remotely. There are two levels of access to theHOA 7320 web interface:

Statusfor monitoring the HOA 7320 Adjustmentsfor monitoring and adjusting the HOA 7320

Table 2-3shows the user name and default password required to access theHOA 7320 user interfaces.

The passwords can be changed. User names cannot be changed.

Table 2-2: Serial Port Pinouts

Pin Signal

6 Reserved; do not connect5 RS232 RX from the PC

4 Ground

3 TTL Alarm

2 RS232 TX to the PC

1 Reserved; do not connect

Table 2-3: HOA 7320 User Names and Passwords

Interface User Name Default Password

Telnet Command Line admin password

Web Status (not required) (not required)

Web Adjustments Config config

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NOTE: User names and passwords are case sensitive.

To change the passwords for web adjustment and Telnet access:

1. Connect a PC to the serial port of the HOA 7320 using the serial cabledescribed above or equivalent.

2. Use HyperTerminal or a similar utility to access the command lineinterface of the HOA 7320.3. At the login prompt, type adminand press Enter.4. At the password prompt, type passwordand press Enter.5. To change the Telnet-access password, type passwdnew_telnet_password

(where new_telnet_passwordrepresents the new password), then pressEnter.If you are unsure what Telnet password to assign, talk to your networkadministrator.

6. To change the web adjustments password, type passwd-hnew_web_password(where new_web_passwordrepresents the new

password), then press Enter.If you are unsure what web password to assign, talk to your networkadministrator.For further information about password command options, typehelp passwd.For further information about other CLI commands, type help.

2.10.3 Assigning an IP Address to the HOA 7320

Use the following procedure to access the configuration utility available in thecommand line interface and assign a static IP address to the HOA 7320.

To assign an IP address:1. Use the PC that is connected to the HOA 7320s serial port via the serial

cable described above or equivalent.2. If you have not logged into the HOA 7320, at the login prompt, type the

user name and press Enter. At the password prompt, type the passwordand press Enter.The default user name is adminand the default password is password.

3. At the > prompt, type the following string:config -i x.x.x.x -g y.y.y.y -m 0xffffff00

where x.x.x.xis the IP address, y.y.y.yis the gateway address, and0xffffff00is the netmask.

4. PressEnter.

2.10.4 Setting the System Time

If you have set an IP address for the amplifier, you have two options foraccessing the amplifiers CLI to set the system time. You can use the IPaddress to establish a Telnet session, or you can use the serial interfacedescribed above. Once you have accessed the CLI, you can set the system timewith the aid of an NTP server or by entering a system time manually.

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Enabling Remote Monitoring


To set the system time using the NTP server:

1. If you have not logged into the HOA 7320, at the login prompt, type theuser name and press Enter. At the password prompt, type the passwordand press Enter.The default user name is adminand the default password is password.

2. At the > prompt, type the following string:config -s sntp-server-ip-addresswhere sntp-server-ip-addressis the IP address on the SNTP server(the default is: 0.0.0.0)

3. PressEnter.4. To log out of the command line interface, type exitat the prompt and

press Enter.

To set the system time manually:

1. At the login prompt, type adminand press Enter.2. At the password prompt, type passwordand press Enter.3. At the > prompt, type the following string:

config -d yyyy:mm:dd -t hh:mm -z UTC_offset

Where:-d yyyy:mm:dd sets the system date in year, month, and day-t hh:mm sets the system time in hours and minutes-z UTC_offset sets the timezone in minutes from UTC (GMT).(The UTC_offset is the number of minutes from UTC time. This valueranges from -720 to 720.)

4. PressEnter.5. When you are finished, log out of the command line interface by typing

exitand pressing Enter.

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3

Web Interface

This chapter introduces the MAXLink HOA 7320 Optical Amplifier webinterface. Once the amplifier is operating, the web interface provides aconvenient means to manage it. The HOA 7320 has an embedded HTTPserver, which allows you to remotely view the status of alarms and settings, ormake adjustments to the amplifier. However, for security reasons, a password

is required to change any settings.This chapter describes:

Requirements HTTP access control How to access and use the web interface How to change your access level and adjust the amplifier Adjustment options Web interface tips

3.1 Requirements

You can access the HOA 7320 web interface from any computer that isconnected to the same IP network and has a web browser.

To use the web interface, the HOA 7320 must be properly installed, asdescribed in Chapter 2, Installing the HOA 7320, and you need to know theamplifiers IP address. Specifically, the HOA 7320 must be connected to yourIP network as described in Section 2.10 Enabling Remote Monitoringon page2-10, and IP addresses must have been assigned to the HOA 7320 as describedin Section 2.10.1 Accessing the Serial Porton page 2-10.

3.2 HTTP Access ControlThere are two levels of access to the HOA 7320 web interface:

Statusfor monitoring the amplifier Adjustmentsfor monitoring and adjusting the amplifier

To make adjustments, the user name and password are required.

Your company can provide different levels of access to different people basedon their job function or other criteria. Some staff members can monitor theHOA 7320, while others may adjust the settings.

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Web Interface


To change access level, click the Change Accessbutton near the top of the webinterface. When prompted, enter the user name and password. Once verified,you are given the read-write capability to configure the unit. The user nameand default password are given in Section 3.4 Adjusting the HOA 7320on page3-3.

NOTE: To maintain network security, Harmonic recommends that youchange the password during HOA 7320 installation, as described inSection 2.10.2 Changing Passwordson page 2-11.

3.3 Accessing and Using the Web Interface

You can access the web interface for the HOA 7320 from your browser.

To access the web interface:

1. Using a computer that is connected to the same TCP/IP network as theHOA 7320, launch a web browser.

2. In the web browsers Address (URL) field, type the IP address of theamplifier, then press Enter.Your browser connects to the amplifier, and the web interface appears, asshown in Figure 3-1. The top frame identifies the HOA 7320. The leftframe displays any current alarms and refreshes every 30 seconds. Theright frame shows the amplifierss current configuration.

Figure 3-1. Web interface (status mode)

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Adjusting the HOA 7320


3.4 Adjusting the HOA 7320

To change the amplifiers settings, you must enter the web interface, thenchange your access level.

To adjust the HOA 7320:

1. Enter the web interface, as described in Section 3.3. The web interfaceappears, as shown in Figure 3-1 on page 3-2, and you are in status(read-only) mode.

2. Click the Change Accessbutton in the top frame.The Change Access (login) page appears, as shown in Figure 3-2.

Figure 3-2. Change Access (login) page

3. Type the user name and password, then click Log On.The user name is Config. By default, the password is config, but it mayhave been changed during installation. You may need to check with yoursystem administrator.The user name and password are case sensitive.

NOTE: To maintain network security, Harmonic recommends that youchange the password during installation of the HOA 7320. Forinstructions on how to change the password, see Section2.10.2 Changing Passwordson page 2-11, or contact Harmonic

customer support for assistance.

The Amplifier page appears, as shown in Figure 3-3 on page 3-4, and you

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Web Interface


are now in adjustments (read-write) mode.

Figure 3-3. Web interface (adjustments mode)

4. You can edit many of the settings by typing the new values or using thedrop-down menus (where present). After changing values (as manyvalues as you want), click Applyfor your changes to take effect. TheConfirmation page appears, as shown in Figure 3-4.If you want to clear your changes without saving them, you can revert to

the previous settings by clicking Refresh Values.

Figure 3-4. Confirmation page

For more information about the settings you can change, see Section3.5 HOA 7320 Adjustment Optionson page 3-5.

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HOA 7320 Adjustment Options


3.5 HOA 7320 Adjustment Options

Table 3-1describes the adjustment options for the HOA 7320.

3.6 Web Interface Tips

This section provides some tips that will help you use the MAXLink webinterface.

Grayed-out Values

In a text field, values that appear as gray text are read only and cannot bechanged.

Apply Button

After you change one or more parameters on a page, you must click Applyto

have the changes take effect.Refresh Values Button

Clicking Refresh Valuesrefreshes the web page you are viewing. The new pageshows the current settings.

Table 3-1: HOA 7320 Adjustment Options

Option Description

Laser Enabled Enables or disables the laser.

Low Output Power Mode Drops the output power to between 14 and15 dBm.

Low Optical Input Threshold Sets the input alarm threshold to between 10and+10 dBm.

Composite Output PowerSet Point

Sets the output power to between 16 and20.5 dBm.

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Web Interface


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MAXLink HOA 7320 Optical Amplifier Product ManualRev A (3/06) 41

4

Connecting the HOA 7320 to an NMS

Once the HOA 7320 is operating, you can use a network management system(NMS) to monitor and control it. This chapter tells you how to connect theHOA 7320 to an NMS.

For instructions on installing, configuring, and operating an NMS, please referto the documentation for the NMS.

MAXLink HOA 7320 Optical Amplifiers have an embedded SNMP agent thatenables communication between the HOA 7320 and any devices that supportSNMP versions 1, 2c, or 3.

To connect the HOA 7320 to an NMS:

1. Complete the installation procedures described in Chapter 2, Installing theHOA 7320. To connect to an NMS, the HOA 7320 must be connected toyour IP network as described in Section 2.10 Enabling Remote Monitoringon page 2-10, and IP addresses must have been assigned to the HOA 7320as described in Section 2.10.3 Assigning an IP Address to the HOA 7320onpage 2-12.

2. Determine the IP address of the HOA 7320.3. Determine your default access rights for different versions of the SNMP

protocol. The default access rights for SNMP versions 1, 2c, and 3 areshown in Table 4-1and Table 4-2.

4. Locate and compile the Harmonic MIB (management information base)files for the HOA 7320. Feed the MIBs for the HOA 7320 into your NMSsMIB compiler.

5. Add the HOA 7320 as an SNMP trap target in your NMS, so that the NMSreceives SNMP notifications from the HOA 7320.

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Connecting the HOA 7320 to an NMS


Table 4-1: Default Access Rights for SNMPv1 and SNMPv2c

CommunityString(s)

Rights To/From MIBs/Objects

public, admin Will not read,Will not write snmpFrameworkMIBObjectssnmpProxyMIBsnmpUsmMIBsnmpVacmMIBsnmpCommunityMIBenterprise factory MIB

public Will not write Any object

admin Will write Any enterprise user MIBobject with the maximumaccess read-write

Table 4-2: Default Access Rights for SNMPv31

1. Password-to-key conversions are computed according to RFC 2574,A.2.1 and A.2.2.

UserAuthentication& Privacy

Rights To/From MIBs/Objects

public None Will not read,Will notwrite

snmpFrameworkMIBObjectssnmpProxyMIBsnmpUsmMIBsnmpVacmMIBsnmpCommunityMIBenterprise factory MIB

public None Will notwrite

Any object

admin MD-5 & DES withpass phrase config

Maximumaccess

Any supported objectexcluding any enterprisefactory MIB

intialmd5 MD-5 & DES withpass phrase intialmd5

(Provided only as a template so that you cancreate your own users)

intialsha SHA-1 & DES withpass phrase intialsha

(Provided only as a template so that you cancreate your own users)

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5

Maintenance

This chapter describes how to:

Place the HOA 7320 in low output power mode Clean fiber optic connectors Replace the fan filter in the HOA 7320

5.1 Low Output Power Mode

You can place the HOA 7320 in a low output power mode from a switch onthe rear panel or via the web interface.

NOTE: Harmonic recommends that you always disable the laser outputbefore disconnecting any optical fibers.

The optical output power is limited to 15 dBm while the HOA 7320 is in lowoutput power mode.

5.2 Cleaning Fiber Optic Connectors

DANGER: The fiber cable carries invisible laser radiation. AVOIDEXPOSURE TO THE BEAM. Never operate a unit that has abroken fiber or a disconnected fiber connector.

Dirty optical connectors are the leading source of poor performance in anoptical fiber network. Dirty optical connectors lead to optical signal loss andreflections, which in turn can seriously degrade carrier-to-noise (CNR)performance and, in some cases, distortion performance.

Therefore, Harmonic recommends that you clean all mating fiber connectors,before connecting them to an optical device.

In addition, if you suspect that the optical connector of an HOA 7320 mayhave been exposed to contamination (by a dirty fiber cable connector, forexample), you should properly clean the HOA 7320 optical connector beforeconnecting the optical fiber.

CAUTION: Improper cleaning of an optical connector can do more harmthan good. Never spray a clean-air product onto the surface of

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6

Troubleshooting

This chapter describes:

How to troubleshoot the HOA 7320 How to return the unit for service Manufacturer disclaimer

6.1 Alarms

describes the alarms for the HOA 7320. Every alarm is reported via SNMPand via the web interface. In addition, any alarm triggers the alarm relay, andthe Status LED on the front panel illuminates red.

Table 6-1: Alarms

Alarm Description

Low optical input alarm Optical input is below user settable alarmthreshold (default is -5 dBm). The unit willremain functional down to -10 dBm. Ifoptical input power falls below -10 dBm,the pump laserwill be turned off.

Power supply alarm(DC powered units only)

At least one of the two power supplyinputs (A or B) is below 24V.

Low optical output alarm Output power is below threshold (or off)and pump laser is turned off.

Laser output enabled

switched off alarm

Laser switch is turned off and pump laser

is turned off.Interlock open alarm Interlock connection between Pin 4 and 5 is

open and pump laser is turned off.

Laser current alarm The current in at least one of the pumplasers has exceeded its alarm threshold.

Temperature alarm Unit temperature has exceeded its alarmthreshold.

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Troubleshooting


6.2 Troubleshooting

DANGER: The fiber carries invisible laser radiation. AVOID DIRECTEXPOSURE TO BEAM. Never operate the unit with a brokenfiber or with a fiber connector disconnected. Never operate unitwith unconnected output shutters open.

Should a problem occur, check the following:

1. Confirm that the HOA 7320 amplifier is receiving power.2. View the HOA 7320 front panel display to determine if an alarm conditionis indicated.

3. Verify optical input level and optical output levels to determine if there isa dirty connector.

Table 6-2lists front panel LED behavior and alarm conditions and possiblecorrective actions.

Composite alarm At least one of the previous alarms in thistable has been triggered.

Power saving modealarm EDFA is in power saving mode.

Table 6-2: Troubleshooting

Symptom Action

Power LED doesnt light Verify that the power connection on the back isconnected properly to a power supply with thecorrect voltage rating (36 to 72 V).

Status LED is red The unit is not working properly and is in analarm state. The alarm can be determined bylooking at the SNMP trap or the web interface.

Laser Output Enabled LEDis not lit

The key switch on the back of the unit is turnedoff. Change the position of the key to ENABLED.

Low input power alarm Verify that your input signal is connectedwith the proper input power (range from

user settable low limit (default is -5 dBm) to+10 dBm). Clean the input connector on the EDFA (see

Section 5.2 Cleaning Fiber Optic Connectorsonpage 5-1).

If none of the above corrects the problem,contact Customer Service (see Section 6.3 InCase of Problems).

Table 6-1: Alarms

Alarm Description

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MAXLink HOA 7320 Optical Amplifier Product Manual Rev A (3/06) A1

Appendix A

Technical Specifications

A.1 Optical Output

Total output power: 20 dBm minimum (100 mW)

Input range: 5 to +10 dBm

Noise figure:

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A2 Copyright 2006 Harmonic Inc.

A.3 Power

Power requirements:

AC model: 100 to 240 VAC; 50 to 60 Hz

DC model: 48 VDC nominal (36 to 72 VDC)

Power consumption: 75 watts maximum

A.4 Environmental

Operating temperature range: 0 to 50 C / 32 to 122 F

Storage temperature range: 40 to 70 C / 40 to 158 F

Relative humidity: 85% maximum, non-condensing

A.5 Physical

Dimensions: 19.0 in W x 3.4 in H x 12.0 in D/48.3 cm W x 8.6 cm H x 30.5 cm D

Weight: 9.23 Kg /20.5 lbs

Mounting: 19- or 23-inch rack

A.6 Laser Radiation Warning

Complies with 21 CFR 1040.10 and 1040.11 except for deviations pursuant toLaser Notice No. 50, dated (July 26, 2001) as applicable to Class 3B laserproducts.

Figure A-1and Figure A-2show the warning labels and where they arelocated on the unit. Figure A-2shows the laser aperture labels.

Figure A-1. Left-rear corner of HOA 7320

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Figure A-2. Top view of rear panel with fiber access cover open

A.7 Agency Certifications

EN60950-1, EN60825-1: TUV GS-Mark

UL60950-1, CSA 60950-1: (cTUVus)

FCC Part 15 Class A, ICES 003, VCCI, CDRH

EN55022 Class A, EN55024 (TUV EMC-mark, CE)

A.8 Compliance with WEEE

Harmonic will ensure that all products that cannot bere-used will be recycled in compliance with the WEEEDirective. To that end, users are advised that (1) Harmonicequipment is not to be discarded in household or officegarbage, (2) customers may consult the Harmonic web site

(www.harmonicinc.com) for additional and updatedinformation on this process.

Laser Aperture

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Alarm Parameters

Front

Panel

Label

HTTP Label Table Parameter OIDSNMP Alarm

Status Variable*

22

Unit

Temperature

Alarm

Status LED Unit temperature propertyTableheCommonTemperat

ure.1

currentAlarmState.18.he

CommonTemperature.1

23Power Saving

Mode AlarmStatus LED Loss of AC power discretePropertyTable

hlEdfaVponUnitPwrS

avMode.1

discreteAlarmState.15.hlEdfaVponUnitPwrSavM

ode.1.2

24Laser Enabled

AlarmStatus LED Safety shutdown discretePropertyTable

hlEdfaVponUnitPum

pOn.1.1

discreteAlarmState.15.h

lEdfaVponUnitPumpOn.

1.1

25

Low Output

Power Mode

Alarm

Status LEDLow output power

modediscretePropertyTable

hlEdfaVponUnitLow

OutputPwrMode.1


lEdfaVponUnitLowOutp

utPwrMode.1.2

26Interlock Open

AlarmStatus LED Interlock open discretePropertyTable

hlEdfaVponUnitExtInt

erlockOpen.1


lEdfaVponUnitExtInterlo

ckOpen.1.2

27

High Ouput

Power

ShutdownAlarm

Status LEDHigh output

power shutdowndiscretePropertyTable

hlEdfaVponUnitExtHi

OutPwrShutdown.1


lEdfaVponUnitExtHiOut

PwrShutdown.1.2

28Power Supply

A Status AlarmStatus LED

Power supply A

discretePropertyTablehlEdfaVponUnitExtSt

atusPowerSupplyA.1


lEdfaVponUnitExtStatus

PowerSupplyA.1.2

29Power Supply

B Status AlarmStatus LED

Power supply B

discretePropertyTablehlEdfaVponUnitExtSt

atusPowerSupplyB.1


lEdfaVponUnitExtStatus

PowerSupplyB.1.2

30Laser Current

Status AlarmStatus LED

Laser current

discretePropertyTablehlEdfaVponUnitExtLa

serCurrentStatus.1


lEdfaVponUnitExtLaser

CurrentStatus.1.2

31Input Power

AlarmStatus LED

Low optical input

powerpropertyTable

heOpAmpInputPowe

r.1.1


OpAmpInputPower.1.1

32Output Power

Alarm

Laser

Output

Enabled

LED

Loss of optical

output powerpropertyTable

heOpAmpOutputPow

er.1.1


OpAmpOutputPower.1.

1

* Active alarms can be found in currentAlarmTable, log of past alarm(s) (last 50) can be found

in heCommonLogTable.

Alarm

Parameter

Description

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Alarm Thresholds

Alarm HiHi SNMP

MIB Variable

Default Alarm

HiHi

Threshold*

Settable HiHi

Threshold*

Alarm LoLo

SNMP MIB

Variable

Default

Alarm LoLo

Threshold*

Settable

LoLo

Threshold*

33

Unit

Temperature

Alarm

analogAlarmHiHi.18.

heCommonTemperat

ure.1

80 C 50 C to 80 C

analogAlarmLOL

O.18.heCommon

Temperature.1

44 C 44 C to 0

C

34Input Power

Alarmn/a n/a n/a

analogAlarmLOL

O.18.heOpAmpI 5 dBm

-10 to +10

dbm

*Units of Threshold value will correspond to units of Parameter value (i.e., if parameter' units are

HeTenthCentigrade, then threshold's units will also be HeTenthCentigrade).

Alarm Parameter

Description

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Alarm Troubleshooting

Alarm Descri pt ion Alarm Troubleshoot ing

35 Unit Temperature Alarm

Unit temperature is too

high.

Check office and unit temperature.

Verify that the operating temperature of the unit is within the

specified range of operation (0 to + 50 C).Verify that the fans filter is clean and unclogged, (see product

manual section 5.3 Fan Filter Replacement on page 5-3).

36 Power Saving Mode AlarmUnit is in power saving

mode.

The unit is operating in the power saving mode. Alarm will be

raised, and output power and fans are shutoff a couple of

minutes after the mode if turned on.

To turn the unit back to normal operating state, verify that the

single way to put the unit in power saving mode are all set to

off ( HTTP/SNMP command). If the above steps does not

clear the alarm, contact Customer Service.

37 Laser Enabled AlarmPump laser(s) is turned

off.

The unit output has been turn off. To turn the unit output on,

verify that that the following three commands are set to on,

(1)Manual key switch, (2)the rear panel TTL input, and (2)the

SNMP/HTTP remote command. If the key switch is turned

off, the Manual Switch off LED on the front panel will also be

red. If the above steps does not clear the alarm, contact

Customer Service.

38Low Output Power Mode

Alarm

Unit is in low output

power mode.

The unit is operating in the low output power mode and the

output power is limited to about 15dBm per output.

To return the unit to the normal mode verify that the three

ways of putting the unit in the low mode (local toggle switch,

TTL input, and HTTP/SNMP remote command) are all turned

off.

If none of the above corrects the problem, contact Customer

Service

39 Interlock Open Alarm Interlock is open.Check interlock status. If interlock is closed and unit is still in

alarm state, contact customer service.

40 High Ouput Power ShutdownAlarm

Unit is shut down due tohigh output power.

Power cycle the unit. If alarm still exists, contact customerservice.

41 Power Supply A Status AlarmThe -48V input to power

suppy A is out of range.Check Input A voltage range.

42 Power Supply B Status AlarmThe -48V input to power

suppy B is out of range.Check input B voltage range.

43 Laser Current AlarmPump laser current is too

high.

Check for other alarms. If no other alarm is found, contact

customer service.

44 Input Power AlarmInput optical power is

below threshold.

Verify that your input signal is connected with the proper input

power (range from -5 to +10dBm).

Check low input power alarm threshold.

Clean the input connector on the EDFA (see 5.2 Cleaning

Fiber Optic Connectors on page 5-1).If none of the above corrects the problem, contact Customer

Service.

45 Output Power AlarmOutput power is below

normal operating setting.

Verify that the input power to the EDFA is connected with the

proper level and that the Laser is enabled.

Check for other alarms, and i f present, follow the

recommendation above to clear them.

If none of the above corrects the problem, contact Customer

Service

Alarm Parameter

Description

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MAXLink HOA 7320 Optical Amplifier Product Manual Rev A (3/06) B1

Appendix B

Harmonic Inc. Offices

Assistance

For technical support and customer service, call toll free: 800.730.4099.

Harmonics web address is www.harmonicinc.com.

Worldwide Technical Support andReturn Materials AuthorizationTel: 1.800.730.4099 (inside U.S.)Tel: +1.408.542.2771 (outside U.S.)Fax: +1.408.490.6770E-mail: [email protected]

U.S.A. Corporate HeadquartersHarmonic Inc.

549 Baltic WaySunnyvale, CA 94089, U.S.A.Tel: 1.800.788.1330 (inside U.S.)Tel: +1.408.542.2500 (outside U.S.)Fax: +1.408.490.6708

Asia Pacific HeadquartersHarmonic LimitedSuite 703-704, CMG Asia TowerThe Gateway, 15 Canton RoadTsimshatsui, Kowloon, Hong KongTel: +852.2116.1119Fax: +852.2116.0083

Europe and Africa Headquarters

Harmonic Inc.Continental Square, 4 Place de LondresSaturne Building, 2nd FloorROISSY CDG Cedex, 95727, FranceTel: +33.1.48.62.92.12Fax: +33.1.48.62.92.36

U.K., Middle East,and South Africa HeadquartersHarmonic Inc.21 Progress Business CentreWhittle ParkwaySlough, Berkshire SL1 6DQ, United KingdomTel: +44.1.753.714.367Fax: +44.1.753.540.990

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Harmonic Inc. Offices

hoa7320 reva man

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